Development of Cng Infrastructure in India with ... - GAIL (India)

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Daughter Station: The “Daughter Stations” dispense CNG using mobilecascades. These mobile cascades at daughter stations are replacedwhen pressure falls and pressure depleted mobile cascade is refilled atthe “Mother Station”. The investment in a daughter station is least amongall types of CNG stations.There is reduction in storage pressure at daughter stations with eachsuccessive filling. Once the storage pressure drops, the refueling timeincreases, while the quantity of CNG dispensed to vehicle also decreases.Daughter-Booster Station: Installing a booster compressor can eliminatedrawbacks of daughter stations. The mobile cascade can be connectedto the dispensing system through a booster. Daughter booster(compressor) is designed to take variable suction pressure and dischargeat constant pressure of 200 bars to the vehicle being filled with CNG. Theinvestment in daughter booster station is slightly higher than that ofdaughter station.TYPICAL DAUGHTER BOOSTER STATION6. Mega CNG Stations:Mega CNG stations have been conceptualized to cater to a large fleet ofvehicles, particularly the buses. The objective is to provide comfortablefilling experience to the consumers when they come to the station forrefueling. Mega CNG stations are constructed on much larger plot of land6
than that of conventional CNG stations, as a result of which more numberof Compressors and Dispensers can be installed and more number ofvehicles can be simultaneously refuelled at such stations. A Mega CNGstation has been commissioned at Rohini, Sector 23 on July 13, 2003 and asimilar station has been put into operation at Patparganj on June 30, 2003.At present, there are three Mega CNG stations in Delhi.The CNG Mega station at Patpargang has been constructed at a cost ofaround Rs.13.5 crores (USD 3 MM) to simultaneously refuel five buses andeight other vehicles (cars, autos, mini buses etc.). Built on a plot of size 75m X 40 m, it has the capacity to comfortably refuel CNG to 800 buses andover 1500 other vehicles daily.7. Performance:The growth in the CNG infrastructure and the performance of IGL since it’sinception in December, 1998 is presented in the following bar charts:Growth in CNG vehicles:800007000060000500004000030000200001000002 1000 2 181645492257529550434147000887470249April-98 April-99 April-00 April-01 April-02 April-03BusesOther Vehicles* Source: Transport Department, Government of Delhi.• Other Vehicles include private cars, taxis, three wheelers, mini buses.• As on December, 2003 the number of vehicles is 87026. ( Buses 9958, others 77068)7
Page 1 and 2: Development of Cng Infrastructure i
Page 3 and 4: Colourless -Odourless -Natural Gas
Page 5: and Delhi Administration for the co
Page 9 and 10: 8. Economics of CNGThe growth of CN
Page 11 and 12: CNG STATIONS IN INDIA AS ON JANUARY
Page 13 and 14: 10. Difficulties For Developing CNG
Page 15: • CNG stations need to be built i

Development of Cng Infrastructure in India with ... - GAIL (India)

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